<template>
  <div :class="{'hidden':hidden}" class="pagination-container">
    <el-pagination :background="background" :current-page.sync="currentPage" :page-size.sync="pageSize" :layout="layout" :page-sizes="pageSizes" :pager-count="pagerCount" :total="total" v-bind="$attrs" @size-change="handleSizeChange" @current-change="handleCurrentChange" />
  </div>
</template>

<script>
import { scrollTo } from "@/utils/scroll-to";

export default {
  name: "Pagination",
  props: {
    total: {
      required: true,
      type: Number,
    },
    page: {
      type: Number,
      default: 1,
    },
    limit: {
      type: Number,
      default: 10,
    },
    pageSizes: {
      type: Array,
      default() {
        return [10, 20, 30, 50];
      },
    },
    // 移动端页码按钮的数量端默认值5
    pagerCount: {
      type: Number,
      default: document.body.clientWidth < 992 ? 5 : 7,
    },
    layout: {
      type: String,
      default: "total, sizes, prev, pager, next, jumper",
    },
    background: {
      type: Boolean,
      default: true,
    },
    autoScroll: {
      type: Boolean,
      default: true,
    },
    hidden: {
      type: Boolean,
      default: false,
    },
  },
  data() {
    return {};
  },
  computed: {
    currentPage: {
      get() {
        return this.page;
      },
      set(val) {
        this.$emit("update:page", val);
      },
    },
    pageSize: {
      get() {
        return this.limit;
      },
      set(val) {
        this.$emit("update:limit", val);
      },
    },
  },
  watch: {
    // total() {
    //   if (
    //     this.total == (this.currentPage - 1) * this.pagesize &&
    //     this.total != 0
    //   ) {
    //     this.currentPage -= 1;
    //     this.$emit("pagination", { page: this.currentPage, limit: val });
    //     if (this.autoScroll) {
    //       scrollTo(0, 800);
    //     }
    //   }
    // },
  },
  methods: {
    handleSizeChange(val) {
      this.$emit("pagination", { page: this.currentPage, limit: val });
      if (this.autoScroll) {
        scrollTo(0, 800);
      }
    },
    handleCurrentChange(val) {
      this.$emit("pagination", { page: val, limit: this.pageSize });
      if (this.autoScroll) {
        scrollTo(0, 800);
      }
    },
  },
};
</script>

<style scoped lang='scss'>
.pagination-container {
  background: #fff;
  padding: 32px 16px;
  display: flex;
  //每页多少条   pageSize
  ::v-deep .el-pagination__sizes {
    .el-select {
      .el-input {
        .el-input__inner {
          border: 1px solid #009a94;
        }
      }
    }
  }
  ::v-deep .btn-prev,
  ::v-deep .btn-next {
    border: 1px solid #009a94;
  }
  ::v-deep .el-pagination__jump {
    .el-input {
      .el-input__inner {
        border: 1px solid #009a94;
      }
    }
  }
}
.pagination-container.hidden {
  display: none;
}
</style>
